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Protein / target

Synaptic vesicle glycoprotein 2A

Encoded bySV2AQ7L0J3Homo sapiensSwiss-Prot
Clinically validated
Therapeutic maturity
2
Approved medicines
Open Targets target-level
View by indication →
30
Clinical trials
Small-molecule tractable
Druggability
Approved Drug

Protein at a glance

Biological role

Transmembrane transporter

Strongest disease association

Developmental and epileptic encephalopathy 113

Via encoding gene SV2A · Genetic evidence · score 0.78

Therapeutic position

Established drug target

Small molecules

Derived from structured UniProt, Open Targets and literature data on this page.

Protein profile

UniProt 2026_02

Canonical identity and biological annotation from UniProt.

Function overview

Plays a role in the control of regulated secretion in neural and endocrine cells, enhancing selectively low-frequency neurotransmission.

View complete UniProt function annotation

Plays a role in the control of regulated secretion in neural and endocrine cells, enhancing selectively low-frequency neurotransmission. Positively regulates vesicle fusion by maintaining the readily releasable pool of secretory vesicles (By similarity)

Subcellular location

PresynapseCytoplasmic vesicle, secretory vesicle, synaptic vesicle membrane
Domains and Gene Ontology detail (13)

Gene Ontology

  • Ccell-cell junction
  • Cendoplasmic reticulum
  • CGABA-ergic synapse
  • Cglutamatergic synapse
  • Cneuromuscular junction
  • Cneuron projection
  • Cplasma membrane
  • Cpresynaptic active zone
  • Csynaptic vesicle
  • Csynaptic vesicle membrane
  • Fprotein kinase binding
  • Ftransmembrane transporter activity

742 aa · 83 kDa · 2 isoforms

Biological roles

Reactome v97

What this protein does, drawn together from its UniProt function, Gene Ontology terms and Reactome pathways.

View underlying pathways (4)

Concepts derived from UniProt GO Reactome — each badge above shows which sources supported that role.

Interaction neighbourhood

STRING v12.0

Proteins with the strongest functional or physical association. Node size and line weight reflect STRING confidence; hover or select a partner to inspect one association.

SYPSYT1SV2BSV2CGP2LAMA5SYT2LAMA1SYN1SNAP25SV2A

10 strongest partners — larger node and heavier line mean higher confidence

Functional and physical associations from STRING v12.0. Only associations with this protein are drawn — partner-to-partner links are not part of this evidence.

Approved medicines with mapped indications

2 medicines · 2 areas

Approved therapies targeting this protein, grouped by what they are approved to treat — the disease-first view of the medicines below. Relationships come from the canonical approved-indication graph (ChEMBL phase-4), the same source as the drug cards.

Epilepsy2 medicines
Seizures2 medicines

Approved indications from ChEMBL (phase-4), via the canonical drug→disease graph.

Drugs targeting this protein

2

How approved and investigational drugs engage this protein — mechanism and action type, direct vs complex targeting, and how broadly each acts across other targets. A drug-first view (the section above groups the approved ones disease-first); direct binders with few recorded targets are listed first.

Levetiracetam
Narrow target profileApprovedModulator

Synaptic vesicle glycoprotein 2A modulator

Indicated for Epilepsy, Seizures

Direct interaction with this protein · 1 of 2 recorded protein targets — narrow recorded profile

brivaracetam
Narrow target profileApprovedModulator

Synaptic vesicle glycoprotein 2A modulator

Indicated for Epilepsy, Seizures

Direct interaction with this protein · Only this protein recorded as a target

ChEMBL mechanism, action type, target identity and approved indications. Open Targets clinical status.

Translational evidence

Open Targets 26

Why this target matters therapeutically, strongest evidence first. Disease associations are gene-level (via the gene that encodes this protein) and open into the full confidence synthesis; the development universe, tractability and safety annotations are target-level, from Open Targets.

Strongest disease associations · via encoding gene SV2A

Gene-level evidence surfaced through the gene SV2Athat encodes this protein — not a direct protein–disease relationship. Ranked by Forefront's causal-directness weighting, so genetically- and clinically-evidenced diseases lead over ones that merely share the literature.

Developmental and epileptic encephalopathy 113
0.78Well supported

Genetic evidence dominant · Open Targets 0.48

Epilepsy
0.77Well supported

Clinical evidence dominant · Open Targets 0.63

Status Epilepticus
0.46Limited support

Clinical evidence dominant · Open Targets 0.37

Neurodegenerative Diseases
0.38Preliminary

Pathway evidence dominant · Open Targets 0.55 · no direct causal or clinical evidence

Botulism
0.38Preliminary

Pathway evidence dominant · Open Targets 0.58 · no direct causal or clinical evidence

View evidence synthesis (5)
Developmental and epileptic encephalopathy 113Well supported
0.78
agreement 0.660.90
Genetic100%

Open Targets aggregate 0.48 · 1 independent evidence family

EpilepsyWell supported
0.77
agreement 0.620.93
Clinical88%Literature13%

Open Targets aggregate 0.63 · 2 independent evidence families

Status EpilepticusLimited support
0.46
agreement 0.310.62
Clinical98%Literature2%

Open Targets aggregate 0.37 · 2 independent evidence families

Neurodegenerative DiseasesPreliminary
0.38
agreement 0.210.56
Pathway89%Literature11%

Open Targets aggregate 0.55 · 2 independent evidence families · no direct causal or clinical evidence

BotulismPreliminary
0.38
agreement 0.150.61
Pathway100%

Open Targets aggregate 0.58 · 1 independent evidence family · no direct causal or clinical evidence

This ranking differs from Open Targets' own: re-weighting moves genetically-evidenced diseases above more heavily co-mentioned ones. The evidence agreement range shows how closely the independent evidence families agree — it is not a statistical confidence interval, and nothing here is fitted to outcome data. Derived from Open Targets evidence types under Forefront weighting; the per-type scores above show the calculation.

Show all associations
Epilepsy0.63
Botulism0.58
Neurodegenerative Diseases0.55
Developmental and epileptic encephalopathy 1130.48
Status Epilepticus0.37

Drug development

4 compounds recorded · 2 approved · 2 in clinical development

Open Targets' development universe — every compound recorded against the target at any stage, not all approved medicines. Distinct from the 2 drugs that target this protein in Forefront's canonical graph (2 with a mapped approved indication, shown above): these count different sets and are not a subset relation.

View all recorded compounds (4)
BRIVARACETAMApproval
SELETRACETAMPhase 3
LEVETIRACETAMApproval
PADSEVONILPhase 3

Open Targets known-drugs universe. Drug name and highest clinical stage only — the disease relationship is NOT read from this slice (it carries trial-context noise); approved indications come from the canonical graph above.

Tractability

Small moleculesStrong

Approved Drug and Structure with Ligand support this modality.

AntibodiesEmerging

Feasibility evidence (go cc high conf and uniprot sigp or tmhmm) — no clinical-stage drug of this modality recorded.

Protein degradersEmerging

Feasibility evidence (database ubiquitination and half-life data) — no clinical-stage drug of this modality recorded.

View underlying tractability evidence (7)
SM · Approved DrugSM · Structure with LigandSM · Druggable FamilyAB · GO CC high confAB · UniProt SigP or TMHMMPR · Database UbiquitinationPR · Half-life Data

Raw Open Targets tractability assessment buckets, by modality.

Clinical trials

30

Trials of drugs that target this protein — reached indirectly through those drugs, so a trial listed here studies the drug, not the protein. Ranked by active status, then clinical phase and recency, and spread across the targeting drugs.

View all trials (26)

NOT_YET_RECRUITING · via Levetiracetam · NCT04573803

UNKNOWN · via Levetiracetam · NCT03107507

ClinicalTrials.gov via the drug-target graph.

What's happening now

12

Recent therapeutic activity around this target — regulatory actions, clinical trials and safety signals for 2 drugs that target this protein, plus publications where such a drug is a genuine subject. Every item is reached indirectly through the drug, not the protein itself; incidental mentions (a paper that merely measures a drug) and press items are excluded.

  1. Regulatory approval2026-08-10

    Approval: BRIVARACETAM (ANDA220288)

    fda · regulatory · fda · via brivaracetam

  2. Regulatory approval2026-08-06

    Approval: LEVETIRACETAM (ANDA208458)

    fda · regulatory · fda · via Levetiracetam

  3. Trial status changed2026-08-04

    A Randomized, Dose-Finding and Confirmatory, Double-Blind, Placebo-Controlled, Parallel-Group Multicenter Study With a 2 Stage Adaptive Design and Randomized Withdrawal to Evaluate the Efficacy, Safety, and Tolerability of Brivaracetam as Monotherapy in Patients 2 to 25 Years of Age With Childhood Absence Epilepsy or Juvenile Absence Epilepsy

    Status changed to Completed · ClinicalTrials.gov · via brivaracetam

  4. Regulatory approval2026-07-13

    Approval: BRIVARACETAM (ANDA219766)

    fda · regulatory · fda · via brivaracetam

  5. Regulatory approval2026-07-01

    Approval: BRIVARACETAM (ANDA219952)

    fda · regulatory · fda · via brivaracetam

  6. Regulatory approval2025-12-02

    Approval: LEVETIRACETAM (ANDA215465)

    fda · regulatory · fda · via Levetiracetam

  7. New publication2025-09-13
    Temporal Profile of Treatment-Emergent Adverse Events in Adult Asian Patients with Focal-Onset Seizures During Adjunctive Brivaracetam Treatment: Post Hoc Analysis of a Phase 3, Randomized Trial.

    Advances in therapy · 2025 · 1 citation · Europe PMC · via brivaracetam

  8. Label change2025-08-28

    Label change: BRIVARACETAM (NDA205836)

    fda · regulatory · fda · via brivaracetam

  9. New publication2024-02-14
    Antiepileptic Strategies for Patients with Primary and Metastatic Brain Tumors.

    Current treatment options in oncology · 2024 · 9 citations · Europe PMC · via Levetiracetam

  10. Label change2023-05-17

    Label change: BRIVARACETAM (NDA205836)

    fda · regulatory · fda · via brivaracetam

  11. New publication2022-06-10
    Tolerability and efficacy of adjunctive brivaracetam in adults with focal seizures by concomitant antiseizure medication use: Pooled results from three phase 3 trials.

    Epilepsia · 2022 · 6 citations · Europe PMC · via brivaracetam

  12. New publication2021-11-01
    Effect of Levetiracetam on Cognition in Patients With Alzheimer Disease With and Without Epileptiform Activity: A Randomized Clinical Trial.

    JAMA neurology · 2021 · 224 citations · Europe PMC · via Levetiracetam

Objective event titles are shown unmodified; the event kind and significance line are derived from structured fields. Forefront AttentionEvent stream aggregating Europe PMC Regulatory filings ClinicalTrials.gov.